Trunchbunch Share definition Flag (derogatory) Used to describe a person as sexually promiscuous, passed around Girl1: That Brianna girl is a total trunchbunch! Girl2: I know, right? Trunchbunch by HungryCookies191 October 9, 2023 0 0 Get merch Get the Trunchbunch mug. Buy Now — $32.95 See more merch